Stelpro Sonoma ASO1501T2W
#5 in Wall heaterFull review
A compact 1,500 W wall heater for a bathroom or bedroom on 120 V, with a long warranty.
Amazon $170.95$170.95
The Stelpro Sonoma ASO1501T2W rates 3.7 among wall heater baseboard or wall heaters; the King Electric K Series 6K1215 rates 2.7 among baseboard ones. The Stelpro Sonoma ASO1501T2W costs $38.05 less ($170.95 vs $209).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
King Electric K Series 6K1215
#8 in BaseboardFull review
A sturdy 6 ft, 1,500 W contractor baseboard for 120 V. The short warranty and the higher price per watt hold it back.
Amazon $209$209
Scores side by side
These two sit in different type classes (wall heater and baseboard), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Stelpro Sonoma ASO1501T2W | King Electric K Series 6K1215 |
|---|---|---|
| Overall rating | 3.7/5 | 2.7/5 |
| Value 35% | 66 $113.97 per kW ($170.95, 1,500 W) | 56 $139.33 per kW ($209, 1,500 W) |
| Controls 25% | 50 thermostat in the box | 20 optional built-in thermostat kit |
| Safety 15% | 50 overheat cutout not described (neutral score used) | 75 full-length overheat cutout |
| Warranty 25% | 78 5-year warranty | 0 1-year warranty |
Specifications
| Stelpro Sonoma ASO1501T2W | King Electric K Series 6K1215 | |
|---|---|---|
| Heat | ||
| Type | Fan-forced wall heater | Convection baseboard |
| Rated output | 1,500 W | 1,500 W |
| Voltage | 120 V | 120 V |
| Length | - | 72 in |
| Output per foot | - | 250 W/ft |
| Heating element | Nichrome element | Aluminum ribbon fin element |
| Maker's heating area | 150 sq ft | - |
| Controls | ||
| Thermostat | Built in (mechanical) | Optional built-in kit |
| Selectable wattage | No | No |
| Remote or timer | No | No |
| Safety | ||
| Overheat cutout | - | Yes |
| Full-length limit | - | Yes |
| Build | ||
| Weight | 6.3 lb | 15 lb |
| Warranty | 5 years | 1 year |